package com.jusu.controller;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.jusu.entity.User;


public class IsUser implements Filter {
	public void destroy() {
		
	}
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {


		HttpServletRequest httpRequest = (HttpServletRequest) request;
		HttpSession session = httpRequest.getSession();
		Object object = session.getAttribute("user");
		//System.out.println(object==null);
		HttpServletResponse httpResponse = (HttpServletResponse) response;
		if (object==null) {
			httpResponse.sendRedirect("../../login.jsp");
			System.out.println("sadsa");
		}
		chain.doFilter(request, response);
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
